Gurobi 5.0.1 (linux64) logging started Sat Nov 17 07:27:01 2012

Optimize a model with 69324 rows, 55460 columns and 262258 nonzeros
Presolve removed 488 rows and 4230 columns (presolve time = 5s) ...
Presolve removed 490 rows and 4232 columns
Presolve time: 5.42s
Presolved: 68834 rows, 51228 columns, 256267 nonzeros
Variable types: 0 continuous, 51228 integer (51228 binary)
Found heuristic solution: objective 235.0000000

Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   36802    3.0001231e+00   1.885000e+02   0.000000e+00      5s
   41373    3.0001523e+00   1.464000e+02   0.000000e+00     10s
   45752    3.0001655e+00   4.366667e+01   0.000000e+00     15s
   50131    3.0001729e+00   1.219222e+02   0.000000e+00     20s
   52849    3.0001790e+00   2.338535e+02   0.000000e+00     25s
   55718    3.0001847e+00   1.885645e+02   0.000000e+00     30s
   58587    3.0001908e+00   5.184035e+01   0.000000e+00     35s
   61758    3.0001984e+00   8.093478e+01   0.000000e+00     40s
   64778    3.0002096e+00   5.094005e+00   0.000000e+00     45s
   65530    3.0000000e+00   0.000000e+00   0.000000e+00     46s

Root relaxation: objective 3.000000e+00, 65530 iterations, 46.30 seconds
Total elapsed time = 85.17s

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    3.00000    0   56  235.00000    3.00000  98.7%     -   93s
H    0     0                       3.0000000    3.00000   0.0%     -   93s

Explored 0 nodes (179799 simplex iterations) in 93.33 seconds
Thread count was 1 (of 16 available processors)

Optimal solution found (tolerance 1.00e-04)
Best objective 3.000000000000e+00, best bound 3.000000000000e+00, gap 0.0%